Their goal is to keep any raid force as close to their landing zone as possible. If the landing force is supported by paratroopers that the Germans have used effectively in low countries, they need rally points where the House Guard can try to stop each air force. (whether parachutes or roller coasters) and prevent them from connecting to each other or to sea raiders. Finally, most defensive preparations are designed to Lion I’m an August Guy I have 3 sides shirt reassure the people.